Search

Premium Membership

Learn about power engineering and HV/MV/LV substations. Study specialized technical articles, papers, and electrical engineering video courses.

Home / Technical Articles / Mastering single line and wiring diagrams: Using circuit breaker for MV power factor correction

MV reactive power compensation

Within this article, custom made cubicle intended for supply and protection of MV reactive power compensation block, will be analyzed. Technical characteristics of major electrical components, together with three line and wiring diagrams, will be shown, while some specific aspects of this type of application will be underlined.

Mastering single line and wiring diagrams: Using circuit breaker for MV power factor correction
Mastering single line and wiring diagrams: Using circuit breaker for MV power factor correction

Technical description and wiring diagrams of MV cubicle

Reactive power compensation block, which is the subject of this article, is consisting of three phase reactor connected in series with “double star” configuration capacitor battery made of single phase capacitors.

Main characteristics of this compensation block are as follows:

Capacitors:Double star connection of 6 single phase capacitors, each capacitor with rated voltage of 13.8 kV, and rated power of 220 kvar
Reactor:Three phase, iron core, filtering factor 7%, rated voltage 24kV
Rated power of compensation block:1000kvar @ 20kV
Mounting type:Freestanding, inside the cabinet, on steel made support

This compensation block is designed for PFC purposes of 20kV rated switchgear inside substation for supply of large coal mining excavators. It is mounted inside custom made cabinet, together with electrical equipment for supply and protection.

PREMIUM Membership Required

This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan’s benefits and choose the membership plan that works best for you or your organization.

You can choose an annually based Plus, Pro, or Enterprise membership plan.

Log InSign Up

Premium Membership

Get access to premium HV/MV/LV technical articles, electrical engineering guides, research studies and much more! It helps you to shape up your technical skills in your everyday life as an electrical engineer.
More Information
author-pic

Miodrag Kokotovic

Graduated from Faculty of Electrical Engineering, within University of Belgrade, in the field of electrical power systems. Expert in electrical part of tender preparation, design, procurement, construction and commissioning of treatment plants and pumping stations, electrical power quality and energy management.

Leave a Comment

Tell us what you're thinking... we care about your opinion!

EEP Academy Video Courses

The learning platform for LV/MV/HV electrical engineers. Learn from experienced engineers and sharpen up your knowledge.